Dispositions (Details) $ in Thousands										1 Months Ended					3 Months Ended						12 Months Ended
	Aug. 23, 2022 USD ($)	Sep. 10, 2021 USD ($)	Aug. 12, 2021 USD ($)	May 28, 2021 USD ($)	Sep. 29, 2020 USD ($)	Sep. 11, 2020 USD ($)	Mar. 06, 2020 USD ($)	Feb. 28, 2020 campus	Jan. 10, 2020 USD ($)	Apr. 30, 2021 USD ($)	Apr. 30, 2021 HKD ($)	Oct. 31, 2020 USD ($)	Jan. 31, 2020 USD ($)	Aug. 31, 2019 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 14, 2022 USD ($)	Mar. 08, 2021 USD ($)	Nov. 03, 2020 USD ($)	Oct. 01, 2020 USD ($)	Dec. 31, 2019 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contingent consideration recognized																$ 6,500,000
Amount receivable, noncurrent																								$ 71,700,000
Total Chile impairment																					$ (144,000)	$ (73,756,000)	$ (790,229,000)
Gain (loss) on disposals of subsidiaries, net																					1,364,000	(602,000)	(7,276,000)
Cash and cash equivalents and restricted cash at end of period																345,575,000					93,784,000	345,575,000	867,298,000					$ 97,817,000
Chile | Peru
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total Chile impairment																			$ (418,000,000)
Accumulated foreign currency translation gain (losses)																		$ (293,000,000)
Honduras
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total Chile impairment																	$ (10,000,000)	$ (10,000,000)
LEI Lie Ying Limited | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposition of business																					13,600,000
Net proceeds from divestiture										$ 21,650,000	$ 168,284
ANZ Target Companies and Their Subsidiaries
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposition of business																					555,800,000
Net proceeds from dispositions																					624,200,000
Fundacion Educacion y Cultura | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from divestiture						$ 195,300,000
Amount receivable, noncurrent						$ 21,500,000
Quarterly consideration receivable period						1 year
Cash and cash equivalents						$ 288,000,000
Gain (loss) on disposals of subsidiaries, net						$ (338,200,000)
Turkey Operations | Discontinued Operations, Disposed of by Sale | TURKEY
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received from dispositions														$ 15,000,000
Net proceeds from divestiture												$ 11,436,000
Receivable agreement period														1 year
Campus Guadalajara Norte Sale | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received from dispositions																										$ 13,900,000
Gain (loss) on disposition of business																							5,800,000
Net proceeds from divestiture																							$ 7,000,000
Fundacion Nasser | Discontinued Operations, Disposed of by Sale | Chile
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from collection of notes receivable		$ 21,500,000
Fundacion Nasser | Discontinued Operations, Disposed of by Sale | Honduras
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received from dispositions																									$ 24,000,000
Additional consideration paid held in escrow																									$ 2,000,000
Percentage of escrow funds released after 18 months																									50.00%
Percentage of escrow funds released after 24 months																									25.00%
Percentage of escrow funds released after 36 months																									25.00%
Gain (loss) on disposition of business																					(1,700,000)
Disposal Group, Including Discontinued Operation, Partial Release Of Consideration Paid Held In Escrow															$ 1,000,000
Anima | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposition of business																						33,000,000
Net proceeds from divestiture				$ 625,000,000
Indebtedness assumed by buyer				$ 121,000,000
Walden e-Learning, LLC | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposition of business			$ 619,400,000
Net proceeds from dispositions			1,403,500,000
Amount receivable, noncurrent			74,000,000
Restricted cash held in escrow, released			83,600,000
Estimated tax expense			278,000,000
Proceeds from collection of notes receivable	$ 71,700,000
Walden e-Learning, LLC | Discontinued Operations, Disposed of by Sale | Asset Pledged as Collateral
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount receivable, noncurrent			$ 74,000,000
Exeter Street Holdings, LLC | NewSchool of Architecture and Design, LLC | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received from dispositions							$ 1
Gain (loss) on disposition of business																						(5,900,000)
Percent of ownership sold							100.00%
Consideration, subsidies							$ 7,300,000
Consideration receivable							$ 2,800,000
Quarterly consideration receivable period							4 years
Settlement of consideration receivable																					625,000
INTI Education Holdings Sdn Bhd | Malaysia
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Taxes withheld					$ 4,200,000
Education Holding Cost Rica, S.R.L. | Costa Rica Operations | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received from dispositions									$ 15,000,000
Gain (loss) on disposition of business													$ (18,600,000)
Net proceeds from dispositions																			$ 1,800,000
Total Chile impairment																				$ 25,000,000
Education Holding Cost Rica, S.R.L. | Costa Rica Operations | Discontinued Operations, Disposed of by Sale | Certain Performance Metrics
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received from dispositions									$ 7,000,000
Contingent consideration, performance metrics period									2 years
Amounts of material contingent liabilities remaining									$ 30,000,000
Affiliated Entity | INTI Education Holdings Sdn Bhd | Malaysia
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received from dispositions					140,000,000																						$ 13,700,000
Gain (loss) on disposition of business																					$ 47,900,000
Cash and cash equivalents					19,500,000
Deposit liability					5,000,000
Number of campuses | campus								5
Disposal group, not discontinued operation, percent of ownership disposed of								10.10%
Receipt from sales, net of cash sold and property and equipment					$ 116,300,000
Taxes withheld																$ 420,000						$ 420,000